Which kind of electrical charge is found on the oxygen atom of a polar water molecule ? a.) a negative charge that exist because of a covalent bond with hydrogen b.) a negative charge that exist because of an ionic bond with hydogen c.) a positive charge that exists because of a covalent bond with hydrogen d.) a positive charge that exist because of an ionic bond with hydrogen

Nucleic acid certain protein cell membranes certain carbohydrates

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community

Clara wrote the following hypothesis for an experiment about acidophilic bacteria. bacteria cells will stop dividing in a basic (alkaline) environment because of the high ph. which statement is the best way to restate the hypothesis so that it is more specific? growing acidophilic bacteria in some environments will cause the cells to stop dividing because of ph. if the ph of their environment is changed, acidophilic bacterial cell division will be affected. if the environment of acidophilic bacterial cells becomes alkaline, the bacteria will stop dividing. the more alkaline an environment, the less cell division will occur in bacteria.